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Long‐term healing of mildly cross‐linked decellularized bovine pericardial aortic patch

机译:轻度交联脱叶牛心囊主动脉贴片的长期愈合

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Abstract Glutaraldehyde treated bovine pericardium is extensively used in cardiovascular surgery. However, frequent occurrence of failure modes, such as calcification and structural failure, has hard pressed the need for finding an alternate technology. Decellularized bovine pericardium is an emerging technology. Mildly cross‐linked decellularized bovine pericardium promotes positive remodeling with insignificant calcification and acute inflammation. In the present study, mildly cross‐linked decellularized bovine pericardium was evaluated as a cardiovascular patch by studying mechanical strength as well as graft remodeling, resistance to calcific degeneration and inflammatory response using long duration porcine aortic implantation. It was observed that decellularized bovine pericardium, although thinner and less elastic had equivalent tensile properties such as tensile strength and stiffness when compared to commercially available glutaraldehyde‐treated bovine pericardium. It showed the potential for site appropriate remodeling evidenced by host cell incorporation, thinner neointima, graft degradation, and neocollagenisation making it suitable for vascular patch application, whereas glutaraldehyde‐treated pericardium failed to integrate with host tissue through timely degradation and host cell incorporation or neocollagenization. Conversely, it elicited persistent acute inflammation and produced calcification. ? 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2145–2152, 2017.
机译:摘要戊二醛治疗的牛肉包围广泛用于心血管手术。然而,频繁发生故障模式,例如钙化和结构失败,已经努力找到替代技术。脱细胞牛心包是一种新兴技术。轻度交联的脱细胞牛皮膜促进了微不足道的钙化和急性炎症的阳性重塑。在本研究中,通过研究机械强度以及使用长持续时间猪主动脉植入来评估患者的机械强度以及移植物重塑,抗钙化变性和炎症反应的液体膜膜作为心血管贴膜评估为心血管贴膜。观察到脱细胞化的牛心包,尽管与市售的戊二醛处理的牛肉盒相比,较薄和较少的弹性具有等效的拉伸性能,例如拉伸强度和刚度。它表明,宿主细胞掺入,更薄的内部,移植物降解和新胶凝化,使其适用于适用于血管贴剂的血管贴剂,而戊二醛治疗的心包未能通过及时降解和宿主细胞掺入或Neocollagenization与宿主组织结合,而是通过宿主细胞掺入。相反,它引起了持续的急性炎症并产生了钙化。还2016 Wiley期刊,Inc.J生物保证金部分B:Appl Biomater,105B:2145-2152,2017。

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